This is the 1/10 scale electric powered, radio controlled, ready to run, Traxxas Grave Digger Monster Truck. FEATURES: Chassis: Composite nylon tub style Drive: Rear wheel with telescoping universal-joint driveshafts Motor: Traxxas Titan modified 12 turn 550 with internal cooling fan Radio: Traxxas TQ 27MHz AM 2-channel pistol grip with high-torque waterproof steering servo, 4-channel micro receiver ESC: XL-5 with reverse and training mode Transmission: Brushless ready Magnum 272 metal gear transmission with rubber sealed ball bearings, and Revo-spec Torque-Control slipper clutch Pinion Gears: Two 48 pitch, 19 tooth is installed, 23 tooth included for higher top speeds Battery: Traxxas Power Cell 3000mAh 8.4V 7-cell hump with high-current connector Battery Charger: 110V wall charger Body: Painted and trimmed Grave Digger Shocks: Oil-filled Ultra Steering; Single point Suspension: Long travel Differential: Steel planetary gears, brushless ready Tires: 2.8" (71mm) wide Monster Jam Wheels: Beadlock style Monster Jam INCLUDES: RTR Traxxas Grave Digger Monster Truck, AM radio, 12 turn motor, ESC, painted body, 19 and 23 tooth pinion gears, decals, battery, charger and instruction manual REQUIRES: AA Batteries: Eight for transmitter SPECS: Length: 16.25" (413mm) Front and Rear Track: 12.75" (324mm) distance between outer edges of tires side to side Weight: 65.3oz (1.85kg) Maximum Height: 8.75" (222mm) Wheelbase: 10.63" (270mm) COMMENTS: The Grave Digger is available in the following 27MHz channels; A2 TRAD35A2 A5 TRAD35A5 A4 TRAD35A4 A6 TRAD35A6 The bodies are licensed, so color and paint schemes are the same for all channels. For replacement or to upgrade to Ball Bearings use: Quantity Size Location Order Stock Number 4 5x11mm Front Hubs 2 DTXC1547 4 5x11mm Rear Hubs 2 DTXC1547 6 5x11mm Transmission 3 DTXC1547 jxs 01/24/11 ir/jxs